Chapter 7, Correlation and Dating of the Rock Record
Oxygen isotope data indicate that the _____________ Period was warmer than any previous or subsequent period. Hint
The close of which period saw what is probably the greatest of all mass extinctions? Hint
Trilobites are major index fossils for which period? Hint
Individual organisms do not evolve. True or false? Hint
Does "survival of the fittest" mean the same thing as "natural selection"? Why or why not? Hint
Who was the well-known geologist and geology professor who encouraged Darwin and got him aboard the Beagle? Hint
A _____________ is a reproductively isolated population of organisms. Hint
What two things does natural selection require? Hint
The term ________________ refers to any evolutionary change at or above the level of species. Hint
The term ________________ refers to any evolutionary change below the level of species. Hint
What are the six universally recognized major extinctions? Hint
There are several theories about the causes of mass extinctions. Name three proposed causes. Hint
Which category of organisms is more resistant to mass extinction, plants or animals? Hint
What are the two most accepted current hypotheses for the mass extinction at the end of the Cambrian Period? Hint
What is the name of the theory expressed by the following:
Climate Change =>Mass Extinction =>Rapid Evolution =>Long Period of Stasis =>Climate Change Hint
What were the basic results of David Jablonski's research on mollusks? Hint
What primary conclusion in regard to body size and evolution did Jablonski draw from his research on mollusks? Hint
Were all fossil horses larger than their ancestors? If not, give an example of one that was smaller than its ancestor. Hint
